Withholding of shares of common stock to satisfy tax withholding obligation (relating to vesting of a previously granted award).

(2)

Shares held in trust for the benefit of family members of which reporting person is a trustee.

(3)

Estimated shares attributable to TI 401(k) Account as of 12-31-2011. (Interests in this account are denominated in units. Consequently, share amount shown is an estimate.) This statement does not include changes in beneficial ownership of shares held in this account occurring after 12-31-2011 that are eligible for deferred reporting on Form 5.

(4)

Estimated shares attributable to TI Universal Profit Sharing Account as of 12-31-2011. (Interests in this account are denominated in units. Consequently, share amount shown is an estimate.) This statement does not include changes in beneficial ownership of shares held in such account occurring after 12-31-2011 that are eligible for deferred reporting on Form 5.

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